Question

x^2 - 7x

Answer 1

under what directions

Answer 2

What number must be added to the polynomial to complete the square? If necessary, use the slash mark ( / ) as a fraction bar and leave your answer in the form of an improper fraction.

Answer 3

square 7/2 = 49/4

Answer 4

how you do that is you divide b(7) by 2 and then square the result and add it to both sides

Answer 5

yea i had got tht i tyype it in the calculator and got tht answer to

Answer 6

same thing you've been doing with others

Answer 7

whts tht

Answer 8

don't let the fractions scare you...you got it!

Answer 9

Taking half (dividing by 2) then squaring that result to add to both sides

Answer 10

hold up im confused

Answer 11

use the a b/c key on your calculator.

Answer 12

is it 1/4 or 1

Answer 13

\[x ^{2}-7x+(-7/2)^{2}=0+(-7/2)^{2}\]
\[x ^{2}-7x+49/4=49/4\]
\[(x-7/2)^{2}\]
The number to be added is as you can see is 49/4.
The last line is to show what the root would look like.